Dyfyniad APA

Cox, A., & Hart, R. B. (1986). Plate tectonics: : how it works. Blackwell.

Dyfyniad Arddull Chicago

Cox, Alan, and Robert Brian Hart. Plate Tectonics: : How It Works. London: Blackwell, 1986.

Dyfyniad MLA

Cox, Alan, and Robert Brian Hart. Plate Tectonics: : How It Works. Blackwell, 1986.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.